US2115047A - Tracer ammunition and to an igniter mixture for tracer compositions - Google Patents

Tracer ammunition and to an igniter mixture for tracer compositions Download PDF

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Publication number
US2115047A
US2115047A US113408A US11340836A US2115047A US 2115047 A US2115047 A US 2115047A US 113408 A US113408 A US 113408A US 11340836 A US11340836 A US 11340836A US 2115047 A US2115047 A US 2115047A
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United States
Prior art keywords
tracer
ammunition
igniter
mixture
igniter mixture
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Expired - Lifetime
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US113408A
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Stevenson Thomas
Ernest R Rechel
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Individual
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Priority to US113408A priority Critical patent/US2115047A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/38—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information of tracer type
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
    • C06B33/02—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide with an organic non-explosive or an organic non-thermic component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S149/00—Explosive and thermic compositions or charges
    • Y10S149/123—Tagged compositions for identifying purposes

Definitions

  • the bullet consists of the usual jacket 5 having a slug 6 in its front part and a cavity I in its rear part.
  • a combustible loaded into. the cavityor into a cup placed therein, consists of a tracer coma position 9 and an igniter mixture III which is adapted to be ignited from the propellent charge and to transmit ignition to the tracer composition.
  • the igniter mixture possesses the characteris- 35 tic of being invisible or non-tracing when the bullet is in flight and'its quantity and rate of burning will determine the point in the trajectory at which ignition is transmitted to the tracer composition which when burning is clearly visi- 40 ble; As an example, in a .30 caliber bullet, 2.5
  • grains of the particular igniter mixture to be disclosed herein provides a delay corresponding to the first 250 yards of the trajectory.
  • An igniter mixture capable of functioning in the manner outlined consists of a resinate of an alkaline earth metal such as calcium -20%, a
  • This invention relates to tracer ammunition peroxide of an alkaline earth metal such as strontium '70 -90%, and a met llic fuel such as magnesium 0-10%.
  • the resinates and peroxides of other metals may be combined to impart the property of invisibility.
  • the magnesium may be 5 omitted, or other metals or fuels added to modify the properties.
  • oxidizers may also be added to the mixture in order to modify the burning characteristics.
  • igniter mixture 10 which is invisible when burning is, as follows:
  • Percent Calcium resinate 5 Strontium peroxide 90 Magnesium 5 These ingredients are blended dry and loaded on top of the tracer composition in a suitable press.
  • An alternative method of blending consists in first wetting the calcium resinate and strontium peroxide with carbon tetra-chloride. After mixing the whole thoroughly it is poured into shallow pans and dried at a gentle heat. The dried cake is then granulated to the desired fineness and the magnesium added.
  • the igniter prepared in this manner is generally more stable than the igniter made by blending the dry ingredients.
  • a delay non-tracing igniter mixture for tracer ammunition comprising calcium resinate 5%, strontium peroxide 90%, magnesium 5%.
  • a delay non-tracing igniter mixture for tracer ammunition comprising calcium resinate 5-20%, strontium peroxide 70-90%, and magnesium up to 10%. ,1
  • a delay non-tracingigniter mixture for tracer ammunition comprising a resinate of an alkaline earth metal 5-20%, a peroxide of an alkaline earth metal 70-90%, and a metallic fuel up to 10%.
  • a delay non-tracing igniter mixture'for tracer ammunition comprising calcium resinate 5-20%, strontium peroxide 80-95%.

Description

April 26, 1938. T. STEVENSON TRACER AMMUNITION AND TO AN IGNITER MIXTURE FOR TRACER COMPOSITIONS Filed NOV. 50, 1936 Invent 1:1"5
n U1 5E E M m ve m mR %t S m 5 W an ?M U H h r E E Patented Apr. 26, 1938 UNITED STATES oF ic TRACER AMJWUNITION AND TO AN IGNITER MIXTURE FOR TRACER COMPOSITIONS Thomas Stevenson and Ernest R. Rechel,
Philadelphia, Pa.
Application November 30, 1936, Serial No. 113,408
4 Claims.
(Granted under the act of March 3, 1883, as amended April so, 1928; 370 o. o. 757) The invention described herein may be manufactured and used by or for the Government for governmental purposes, without the payment to us of any royalty thereon.
15 conditions of darkness, it discloses the position of 1 The bullet consists of the usual jacket 5 having a slug 6 in its front part and a cavity I in its rear part. A combustible loaded into. the cavityor into a cup placed therein, consists of a tracer coma position 9 and an igniter mixture III which is adapted to be ignited from the propellent charge and to transmit ignition to the tracer composition.
The igniter mixture possesses the characteris- 35 tic of being invisible or non-tracing when the bullet is in flight and'its quantity and rate of burning will determine the point in the trajectory at which ignition is transmitted to the tracer composition which when burning is clearly visi- 40 ble; As an example, in a .30 caliber bullet, 2.5
grains of the particular igniter mixture to be disclosed herein provides a delay corresponding to the first 250 yards of the trajectory.
An igniter mixture capable of functioning in the manner outlined consists of a resinate of an alkaline earth metal such as calcium -20%, a
This invention relates to tracer ammunition peroxide of an alkaline earth metal such as strontium '70 -90%, and a met llic fuel such as magnesium 0-10%. The resinates and peroxides of other metals may be combined to impart the property of invisibility. The magnesium may be 5 omitted, or other metals or fuels added to modify the properties. oxidizers may also be added to the mixture in order to modify the burning characteristics.
A particular example of an igniter mixture 10 which is invisible when burning is, as follows:
Percent Calcium resinate 5 Strontium peroxide 90 Magnesium 5 These ingredients are blended dry and loaded on top of the tracer composition in a suitable press. An alternative method of blending consists in first wetting the calcium resinate and strontium peroxide with carbon tetra-chloride. After mixing the whole thoroughly it is poured into shallow pans and dried at a gentle heat. The dried cake is then granulated to the desired fineness and the magnesium added. The igniter prepared in this manner is generally more stable than the igniter made by blending the dry ingredients.
We claim:
1. A delay non-tracing igniter mixture for tracer ammunition comprising calcium resinate 5%, strontium peroxide 90%, magnesium 5%.
2. A delay non-tracing igniter mixture for tracer ammunition comprising calcium resinate 5-20%, strontium peroxide 70-90%, and magnesium up to 10%. ,1
3. A delay non-tracingigniter mixture for tracer ammunition comprising a resinate of an alkaline earth metal 5-20%, a peroxide of an alkaline earth metal 70-90%, and a metallic fuel up to 10%. 40
4. A delay non-tracing igniter mixture'for tracer ammunition comprising calcium resinate 5-20%, strontium peroxide 80-95%.
THOMAS STEVENSON. ERNEST R. RECHEL.
US113408A 1936-11-30 1936-11-30 Tracer ammunition and to an igniter mixture for tracer compositions Expired - Lifetime US2115047A (en)

Priority Applications (1)

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US113408A US2115047A (en) 1936-11-30 1936-11-30 Tracer ammunition and to an igniter mixture for tracer compositions

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425418A (en) * 1942-04-18 1947-08-12 Remington Arms Co Inc Ammunition
US2709129A (en) * 1952-12-31 1955-05-24 Remington Arms Co Inc Igniter compositions
US2829596A (en) * 1954-12-17 1958-04-08 Unexcelled Chemical Corp Tracking flares
US2899291A (en) * 1948-06-29 1959-08-11 heiskell
US3118798A (en) * 1961-10-26 1964-01-21 Olin Mathieson Composition and method of forming
US3401636A (en) * 1966-11-30 1968-09-17 Army Usa Clad pyrotechnics
US3902424A (en) * 1973-12-07 1975-09-02 Us Army Projectile
US4202246A (en) * 1973-10-05 1980-05-13 General Dynamics Pomona Division Multiple co-axial optical sight and closed loop gun control system
US4237787A (en) * 1977-11-26 1980-12-09 Diehl Gmbh & Co. Incendiary projectile
WO1997023434A1 (en) * 1995-12-23 1997-07-03 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Priming-explosive-free igniting mixture
WO2000044689A2 (en) * 1999-01-29 2000-08-03 Cordant Technologies, Inc. Water-free preparation of igniter granules for waterless extrusion processes
US20080196617A1 (en) * 2004-07-08 2008-08-21 Heinz Riess Hard-Core Jacketed Bullet with Tracer Composition and Method of Manufacture Thereof
US20180250731A1 (en) * 2013-09-13 2018-09-06 Bae Systems Plc Ammunition production
US11307006B2 (en) * 2018-02-26 2022-04-19 Rwm Schweiz Ag Projectile having a pyrotechnic explosive charge

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425418A (en) * 1942-04-18 1947-08-12 Remington Arms Co Inc Ammunition
US2899291A (en) * 1948-06-29 1959-08-11 heiskell
US2976136A (en) * 1948-06-29 1961-03-21 Raymond H Heiskell Composition for tracer unit
US2709129A (en) * 1952-12-31 1955-05-24 Remington Arms Co Inc Igniter compositions
US2829596A (en) * 1954-12-17 1958-04-08 Unexcelled Chemical Corp Tracking flares
US3118798A (en) * 1961-10-26 1964-01-21 Olin Mathieson Composition and method of forming
US3401636A (en) * 1966-11-30 1968-09-17 Army Usa Clad pyrotechnics
US4202246A (en) * 1973-10-05 1980-05-13 General Dynamics Pomona Division Multiple co-axial optical sight and closed loop gun control system
US3902424A (en) * 1973-12-07 1975-09-02 Us Army Projectile
US4237787A (en) * 1977-11-26 1980-12-09 Diehl Gmbh & Co. Incendiary projectile
WO1997023434A1 (en) * 1995-12-23 1997-07-03 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Priming-explosive-free igniting mixture
WO2000044689A2 (en) * 1999-01-29 2000-08-03 Cordant Technologies, Inc. Water-free preparation of igniter granules for waterless extrusion processes
WO2000044689A3 (en) * 1999-01-29 2000-11-30 Cordant Tech Inc Water-free preparation of igniter granules for waterless extrusion processes
US6315847B1 (en) 1999-01-29 2001-11-13 Cordant Technologies Inc. Water-free preparation of igniter granules for waterless extrusion processes
US20080196617A1 (en) * 2004-07-08 2008-08-21 Heinz Riess Hard-Core Jacketed Bullet with Tracer Composition and Method of Manufacture Thereof
US7661368B2 (en) * 2004-07-08 2010-02-16 Ruag Ammotec Gmbh Hard-core jacketed bullet with tracer composition and method of manufacture thereof
US20180250731A1 (en) * 2013-09-13 2018-09-06 Bae Systems Plc Ammunition production
US10704875B2 (en) * 2013-09-13 2020-07-07 Bae Systems Plc Ammunition production
US11307006B2 (en) * 2018-02-26 2022-04-19 Rwm Schweiz Ag Projectile having a pyrotechnic explosive charge

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